[ExI] Is the brain a digital computer?

[Stathis Papaioannou]

On 26 February 2010 23:51, Stefano Vaj <stefano.vaj at gmail.com> wrote:
> On 25 February 2010 12:21, Stathis Papaioannou <stathisp at gmail.com> wrote:
>> There are many examples of non-computable numbers, functions and
>> problems in mathematics:
>>
>> http://en.wikipedia.org/wiki/Computable_number
>> http://en.wikipedia.org/wiki/Computable_function
>> http://en.wikipedia.org/wiki/List_of_undecidable_problems
>
> Yes. But this has not much to do with the issue of whether a given
> system may be non-computable in the sense that it may exhibit an
> output which could not be replicated by another system when
> performance is not an issue.

It could, if the system to be replicated is a hypercomputer. It could
still be replicated by another hypercomputer, but not by a Turing
machine.


-- 
Stathis Papaioannou